Pattern-cutting device.



W. L. CARSON & G. R. GOULS.

PATTERN CUTTING DEVICE.

APPLICATION FILED JULY 3, 1907.

898,830, Patented Sept.- 15, 1908.

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EJ & M WITNESSES. INVENTOR W/la .L. fla/va/z l vuaw [341W am/ Gad/2g: 27.."600/5 (HE mamas PETERS 00.. WASHINGTON. n. c.

-W. L. CARSON & G. R. COULS.

PATTERN CUTTING DEVIGE. APPLICATION FILED JULY 3, 1907.

Patented se t.1 5,190s.

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WITNESSES:

s yzamd 7 gqiAwmtmmmxmamnmmmmm THE NORRIS PEIEH; 70.. WA: 1 m ran I INVENTORS W/id/WL &/ms0n and Eeoryyc fi C'ou/s WORNE Y UNITED STATES WILLIAM L. CARSON PATENT OFFICE.

AND GEORGE R. GOULS, OF SEATTLE, WASHINGTON.

PATTERN -CU'ITIN G'- DE VICE.

Specification of Letters Patent.

Patented Sept. 15, 1908.

Application filed J'uly 3, 1907. Serial No. 381,988.

means 01 erations which have plished through manual labor may be facilitated through the employment of uniform shapes.

in view the in- 1 construction, f parts as will be hereinafter described and claimed.

In the d of the work-holder,- Fig. 6, a perspective view of a templet; Fig. 7 is a cross sectional view taken through 7? of Fig. 5; and Fig.

is a perspective view of a key suitable for looking a templet in operative position to the work-holder.

The reference numeral 1 0 designates a mandrel adapted to be continuously operated during the progress of driving mechanism such, for example, as being supported between head centers l1 and 12 of a turning lathe and receiving its motion through the latter. of the mandrel it is provided with helical shaped cutting blades 13 having their outer cutting edges 13 concentric to the nlandrel axis as are also the axes of the mandrel extremities 10. d extremities are journaled eocentrically in cylindrical bushings 14 w ich are respectively provided with a collar 14 of a diameter equal or approximately that of the rotatab cutter blades. ly seated in the hooked outer extenparts are assembled and desirably of such a thickness as to have its upper surface 15 tangential to the collars.

The platform is supported at its rear in an suitable manner, as in the illustrated exam ple, by being borne upon the tool rest 16 of the lathe, while at its forward end it is fiX- edly secured to the aforesaid bushings by means of V0 ve in more or 1 tive y of said platform.

Adjustably secured to the platform, and esirably in the operator, is a ed for registering with a in the work holder.

he work holder, see prised of a shank 2 1 and retained by penetrating points 29. he movable jaw is connect ed to the shank by its lower portion 22 being extendin is adjusted clamping mounted agamst longitudinal displacement within the 1e screw 24 is actuated by convenient means, such as a wrench or a hand wheel adapted to engage the protruding end 24 t ereof.

The templets by which the out work is regulated consist of forms with exposed edges 25 upon the 25 shaped of contours similar to is to be 'shed. be reliably secured to by bif that at which the work forms are arranged to the work-holder, as

lower ends and seating the same in saddlegrooves 26 provided in the holder-shank, and thus locked by keys 27 of a dove-tail shape in cross section interfitting in correspondingly shaped notches 28 provided in the templets and arranged so that the keys will bear against the under side of the holder-shank and wedge the forms into close contact with their respective seats. and arranged to be supported by said collars The operation of the invention is as fol l for regulating the cut of the cutters.

lows: Selected templets 25 being respectively l 3. The combination with the platform, a secured as above described within their seats rotary cutter, "ournal bearings having eccenof the workholder, and the work clamped between the jaws by manipulating the con platform, and means for adjusting said beartrolling screw 24. hereupon the holder is l ings whereby the position of the cutter is grasped at its ends in the hands of an operaregulated relatively of the platform, of a tor so that the groove 19 will engage the platwork-holder, templets adapted to be detachform rail'18 and then by moving the holder ably secured to said holder, and supporting with a slight rocking motion over the rotary devices for the templets whereby the cut 0 cutter, or mandrel, the templets will be prethe cutter upon'the work is regulated. sented in alinement with thecollars 14 of the 4. The combination with the rotary cutter bushings and by causing the holder to thus provided with coaxially disposed extremities, traverse the path of the revolving cutting an eccentric bushing for each said extremity edges of the mandrel the work is acted upon and respectively provided with collars, a until limited by the templets contacting with platform provided with hooked extensions said collars and when such a condition )readapted to embrace the respective bushings, vails throughout the length of the temp ets and set screws for adjustably securing said the underside-of the work is finished to a bushings, of a work-holder, and templets form corresponding to the configuration of adapted to be detachably secured to said that portion of the templet which was emholder.

lo ed. Then one side of the work has been 5. The combination with the rotary cutter finished the holder is reversed to accordingly provided with coaxially disposed extremities, treat the other side or end thereof in the an eccentric-bushing for each said extremity having helical shaped cutting blades and provided with ournals, bearings having eccentric openings for said JOIlIIlZLlS, and collars have the periphery thereof flush with the cutting edges of the blades of a work-holder,

.same manner. and respectively provided with hooked ex- It may be said that in cutting pattern geartensions adapted to embrace the respective teeth, that the templet upon one end of a bushings, set screws for adjustably securing holder would be of similar configuration but said bushings, and a guide adjustably secured of slightly smaller size than that at the other to said platform, of a work-holder provided end to cause the work to be formed to a slight with jaws for clamping the work, means to taper and afford means for the patterns being effect such clamping, and templets adapted drawn from the molds, as common. to be detachably secured to said holder and Having described our invention, what we arranged to coact with said collars whereby claim, isthe cut of the cutters upon the work is regu- 1. The combination with the rotary cutter lated.

having coaxially arranged extremities, jour- In testimony whereof we affix our signanal-bearings having eccentrically-disposed tures in presence of two witnesses. openings for said extremities, a workholder, WILLIAM L. CARSON.

templets carried by said holder, means car- GEORGE It. COULS. ried by the bearings for supporting the tem- Witnesses: plets, and devices for adjusting said bearings PIERRE BARNES,

whereby the cut of the cutter is regulated. ROBT. B. GILLIEs.

2. The combination with a rotary cutter upon said bearings,and of a diameter so as to templets detachably secured to said holder tric openings for the cutter carried by saidv 

